class student(object):
    def __init__(self,id,name,tel):
        self.id = id
        self.name = name
        self.tel = tel

    def __str__(self):
        return f'id={self.id}  name={self.name}  tel={self.tel}'

if __name__ == '__main__':
    stu = student(1,'xlq',173)
    print(stu)
